vf_xmedian.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/qsort.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "framesync.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	XMedianContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	OFFSET(x)   offsetof(XMedianContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Functions
static int	query_formats (AVFilterContext *ctx)
static av_cold int	init (AVFilterContext *ctx)
static int	comparei (const void *p1, const void *p2)
static int	median_frames16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	median_frames8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	process_frame (FFFrameSync *fs)
static int	config_output (AVFilterLink *outlink)
static av_cold void	uninit (AVFilterContext *ctx)
static int	activate (AVFilterContext *ctx)
	AVFILTER_DEFINE_CLASS (xmedian)

Variables
static const AVOption	xmedian_options []
static const AVFilterPad	outputs []
AVFilter	ff_vf_xmedian

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(XMedianContext, x)

Definition at line 320 of file vf_xmedian.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 321 of file vf_xmedian.c.

Function Documentation

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 54 of file vf_xmedian.c.

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 86 of file vf_xmedian.c.

comparei()

static int comparei ( const void *  p1, const void *  p2  )

static

Definition at line 117 of file vf_xmedian.c.

Referenced by median_frames16(), and median_frames8().

median_frames16()

static int median_frames16 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 124 of file vf_xmedian.c.

Referenced by config_output().

median_frames8()

static int median_frames8 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 168 of file vf_xmedian.c.

Referenced by config_output().

process_frame()

static int process_frame ( FFFrameSync *  fs )

static

Definition at line 210 of file vf_xmedian.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 237 of file vf_xmedian.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 303 of file vf_xmedian.c.

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 314 of file vf_xmedian.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

xmedian

)

Variable Documentation

xmedian_options

const AVOption xmedian_options[]

static

Initial value:

= {
    { "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=3},  3, 255, .flags = FLAGS },
    { "planes", "set planes to filter", OFFSET(planes),    AV_OPT_TYPE_INT, {.i64=15}, 0,  15, .flags = FLAGS },
    { NULL },
}

Definition at line 323 of file vf_xmedian.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_output,
    },
    { NULL }
}

Definition at line 329 of file vf_xmedian.c.

ff_vf_xmedian

AVFilter ff_vf_xmedian

Initial value:

= {
    .name          = "xmedian",
    .description   = NULL_IF_CONFIG_SMALL("Pick median pixels from several video inputs."),
    .priv_size     = sizeof(XMedianContext),
    .priv_class    = &xmedian_class,
    .query_formats = query_formats,
    .outputs       = outputs,
    .init          = init,
    .uninit        = uninit,
    .activate      = activate,
    .flags         = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 340 of file vf_xmedian.c.